回答編集履歴
2
コード修正
test
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@@ -38,73 +38,77 @@
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class
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public class Test
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{
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class Report
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public Report(string name,string value)
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{
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Name
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public string Name { get; }
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public string Value { get; }
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public Report(string name,string value)
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{
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Name = name;
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Value = value;
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Value = value;
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}
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}
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// Excelから読み込んだ結果のリストを返していると思って下さい
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IEnumerable<Report> ReportsForTest()
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private IEnumerable<Report> ReportsForTest()
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{
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yield return new Report("A", "1");
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yield return new Report("B", "1");
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yield return new Report("C", "2");
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yield return new Report("D", "2");
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yield return new Report("E", "3");
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yield return new Report("F", "1");
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yield return new Report("G", "4");
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yield return new Report("H", "4");
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yield return new Report("I", "5");
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yield return new Report("J", "6");
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}
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void TestMethod1()
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{
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foreach(var xs in ReportsForTest().GroupBy(x => x.Value).Where(xs=>xs.Count()>1))
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{
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yield return new Report("A", "1");
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yield return new Report("B", "1");
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yield return new Report("C", "2");
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yield return new Report("D", "2");
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yield return new Report("E", "3");
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yield return new Report("F", "1");
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yield return new Report("G", "4");
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yield return new Report("H", "4");
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yield return new Report("I", "5");
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yield return new Report("J", "6");
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}
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public void TestMethod1()
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{
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foreach (var xs in ReportsForTest().GroupBy(x => x.Value).Where(xs => xs.Count() > 1))
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{
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Console.WriteLine($"内容が重複しています:{xs.Key}");
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foreach (var x in xs)
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{
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Console.WriteLine($"\t{x.Name}");
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Console.WriteLine($"\t{x.Name}");
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}
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}
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1
コード追加
test
CHANGED
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@@ -17,3 +17,129 @@
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こうすると、GroupByという名前そのままのメソッドがあるので、リストにそれを使うだけです。
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VBで書くのが面倒なのでC#で書きます。
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雰囲気だけ掴んで下さい。
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なんだったらこれを機にC#を学びましょう。
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```C#
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using System;
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using System.Collections.Generic;
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using System.Linq;
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class Report
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{
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public string Name { get; }
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public string Value { get; }
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public Report(string name,string value)
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{
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Name = name;
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Value = value;
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}
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}
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// Excelから読み込んだ結果のリストを返していると思って下さい
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64
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+
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65
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IEnumerable<Report> ReportsForTest()
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{
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yield return new Report("A", "1");
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yield return new Report("B", "1");
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yield return new Report("C", "2");
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yield return new Report("D", "2");
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yield return new Report("E", "3");
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yield return new Report("F", "1");
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yield return new Report("G", "4");
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yield return new Report("H", "4");
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yield return new Report("I", "5");
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yield return new Report("J", "6");
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}
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void TestMethod1()
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{
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foreach(var xs in ReportsForTest().GroupBy(x => x.Value).Where(xs=>xs.Count()>1))
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{
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Console.WriteLine($"内容が重複しています:{xs.Key}");
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foreach(var x in xs)
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{
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Console.WriteLine($"\t{x.Name}");
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}
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}
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}
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```
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TestMethod1の実行結果：
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```
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内容が重複しています:1
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A
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B
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内容が重複しています:2
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C
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D
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内容が重複しています:4
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G
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H
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```
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